Science

Saturday, 13 December 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Phobos
Phobos is a very small moon. Its dimensions are 26.8 x 21 x 18.4 km.
NASA
In the case of finding life on other planets, NASA established an Office of Planetary Protection.
Moon
The Moon's atmosphere consists of 25 percent helium, 25 percent neon, 23percent hydrogen, 20 percent argon and residual amounts of methane, ammonia and carbon dioxide.
Aurora
The aurora is an inseparable element of the polar regions.
It occurs in high latitudes, mainly beyond the Arctic Circle. It also happens, however, that under favorable conditions, it can be observed around the 50th parallel.
Cosmos
The early universe lasted from 1 picosecond for 370.000 years.
During the first stages of this period, it was still too hot for the elements to form spontaneously ...
NASA
President John F. Kennedy set NASA a goal—to send men to the Moon, and bring them back home safely.
NASA responded to Kennedy’s famous speech, known as “We Choose the Moon,” with the Apollo program (1960-1972).
Mushrooms
The element that distinguishes fungi from animal is the presence of cell walls and vacuoles, which in turn brings them closer to plants.
Fungi do not carry out photosynthesis, the cell walls of most fungi contain chitin, which is not fou ...
Nicotine
Nicotine is well absorbed through the skin.
This fact is used in the fight against smoking addiction by using patches soaked in it. There are ca ...
Earth
Depending on the classification, there are five to seven continents on Earth.
According to the most common division, there are Europe, Asia, North America, South America, Africa, ...
Milky Way
The Milky Way is a barred spiral galaxy of type SBbc.
A bright band of stars, gas, and dust runs through the center of the galaxy (forming a bar), with ar ...